Speculative Model of Coupled Mirror Universes: A Conceptual Framework

This work presents a speculative cosmological model in which the cosmos is part of a global system composed of two mirror universes (A and B), symmetric and non-locally coupled. The system dynamics are described through alternating phases of expansion and contraction, with an effective transfer of global conditions (rather than local forces) between both universes. The observed accelerated expansion is interpreted as an emergent geometric effect of this global coupling, compatible with an effective cosmological constant . The model incorporates considerations on entropy, the arrow of time, and temporal symmetry, and employs physical analogies (membranes, bubbles, crossed springs, coupled pistons) as intuitive support. This record also includes the original Spanish version of the manuscript. Version 2This update introduces conceptual clarifications regarding(i) the indirect geometric mediation of gravitational dynamics between mirror universes, and(ii) global temporal desynchronization between expansion and contraction phases.No changes to the core framework or conclusions are introduced.